Crowdrender Install?
James from Crowdrender here, apologies for the late entrance but i jst found this post today, amazing what you find when you google your own org's name :P

Ok, the error you describe means that for some reason a critical component can't be imported. This can happen sometimes if the version of python in blender is not supported by our addon. We have (hopefully) fixed this now and there is a new version (v017) available from our website. This version supports a much larger range of python versions that are bundled with blender. 

https://www.crowd-render.com/download

EDIT

One other thing to note is that if you use a 32 bit version of blender, Crowdrender will spit a very similar error stating that it cannot import some of it's components, this is because we only support 64 bit and as a result, when a 32 bit version of blender tries to use Crowdrender, it will not be able to find the 32 bit components, simply because, they aren't there!